9
Disturbances during operation and trouble-shooting
46
Translation of the original operation manual
•303_208176_1004_en•ski
Faults
Probable Causes
Remedies
15. When spraying, the air motor runs
irregularly.
The pressure gauges show a
synchronously swaying material
pressure.
➤
The air supply line is not sufficient.
➤
Cross section of air supply line is
to small
➤
Pressure in the air supply system
is too low.
➤
The air pressure adjusted at the
air maintenance unit is the same
as the pressure of the air supply
system.
➤
Change the compressor.
➤
Enlarge cross section of air supply
system.
➤
Increase air pressure in the air
supply system.
➤
Lower the pressure at the air
maintenance unit.
16. When flushing, there is an in-
creasing pressure at one or both
pressure gauges, although the 2-K
unit is released from pressure and
the „CIRCULATE“ lever/switch is
CLOSED/OFF.
➤
Anti-return valves of mixing block
do not work.
➤
Clean mixing block.
➤
Replace defective balls, valve
seats or tension springs.
17. When turning from „FLUSH“ to
„SPRAY“, and when opening the
spray gun*, the pressure of one
component rises and the other
one falls.
➤
One (automatic-) valve does not
open.
➤
Check valves and repair.
18. When switching from „SPRAY“ to
„FLUSH“, the flush pump does not
operate.
➤
Flush pump is defective.
➤
Flush valve at mixing block does
not open.
➤
Check whether flush pump is in
operation.
➤
Check valves.
➤
Take off flush hose at automatic
valve and replace by a manual
gun.
➤
Test function of flush pump.
19. The air motor of the 2K-unit is
icing rapidly, and the performance
of the unit decreases.
➤
The anti-icing unit is turned off.
➤
The water separator is full.
➤
The equipment is overworked.
➤
Turn on the anti-icing unit and, if
possible, the fluid heater.
➤
Empty the water separator.
➤
Ensure that the equipment does
not run too fast (standard value is
approx. 25 cycles per minute).
20. Air is escaping from the air motor
at the guide axles behind the pro-
tective grates and at the interme-
diate body.
➤
Gaskets of air motor are worn.
➤
Replace gaskets.
21. The air motor stops working, al-
though there is sufficient pressure
at the air supply .
Base and hardener show no pres-
sure.
➤
The control system of the air mo-
tor is defective.
➤
Have the air motor repaired in a
service center.
